Starting device for internal-combustion engines



Dec. 26, 1922. LMQPSIILII.

l A. I. E.. MUNTERS.

STARTING DEVICE FOR INTERNAL COMBUSTION ENGINES. FILED IuLY 9. 1920.

A v y V llll/lllllllif(4-s` P l fm,

ANDERS JOHAN E: SON If''hT'l'RS, 0.". STUCKll-LOLV, SWEDEN, ASSGNOR TO STARTING IKOMANET l ULT frV CQ., 0F SWEDEN. l i

STARTNG DEVCE FR, NTERhTAL-COMUSTON .ENGNES Application led e.Tuly 9, 1920. Serial No. 394,911.

To all whom it may concern.' at the centre, where the locking members Ee it known that l, Animas Jorian E: son are located, the movement of the handle will, 50 Mun'rnns, a subject et the King oiA Sweden, mentioned above, be dangerous. residing` at lnintmalraregatan i', Stockholm, ln order to prevent lost motion or play Sweden, have invented certain new and usein the locking device, the latter consists ttul Improvements in Starting Devices tor according` to the invention of a friction- Ylnternal-Combustion Engines, ot which `the roller or ball-lock or `any other similar one 55 following is specilication, way locking` device. The device will conrThis invention relates to starting` devices scquently be instantly operative at the begintor internal combustion engines ot' the type ning ot the backward running, while lockin which the starting handle or its shaft is ing the handleat once when operating in directly or indirectly connected, on the one the forward direction.

li and, with the engine shaft by a clutch dis- 'lhree embodiments of the invention are connectible, by the reverse of the engine, illustrated in the accompanyingdrawing, but not by a normal resistance exerted on in whichy the handle, and, on the other hand, with a Figures l andv 2 are a central sectional stationary member by the aid oit a lock view and an end'view respectively of one 65 adapted to operate in one direction only. embodiment. o v

The obgect oit such a device is to prevent Figure 3 is a sectional view of the second 2O the starting` handle from partaking in the embodiment and disconnected from the engine shaft in case backwards running of the engine shaft, Figure 4 is a similar view of the third should the engine be inadvertently reversed embodiment. f 70 while starting'. Although this object has ln the drawing, lv designates the starting; been attained; inasmuch as the handle is handle, i2 a member entrained by the handle and 3 a stationary member. `Disposed beolf' backward running, experience has howtween the members 3 and 2 is lock, as for ever proved that disconnection does not talre instance a common roller-or ball-lock 4 in 75 place. until the handle has turned through such manner that the member 2, withoutl an angle ot' such a magnitude as to be being' prevented bv-the lock, .may be endangerous to the operator, and owing to the trained by the handle and the shaft in the few degrees, may give rise to accidents.

tact that a backwards running` may be forward, but not the backward direction. measured only in thousandths of a second, ltlirtending` "from or engaging the member 2 80 the above mentioned backward running of or any member or members connected therethe handle, though performed through a with is a clutch' consisting', as shown in Figures 1, 3 and 4, of buiiers 5 actuated by The object of this invention is to prevent coiled springs 6. any backward running ot the handle, in case ln the en bodiment shown in Figure 1 85 the engine should be reversed. The part the springs 6 are yinserted in a socket 7 of the device being; ot the greatest imporsecured to the engine shaft 8, said springs 4o tance is the lock device located between the keeping' the buffers in contact with the above mentioned stationary member and the member 9,. `Slaid member is provided with handle or its shaft. Said lock device must recesses corresponding to the conical outer be constructed so as not to allow lost motion surfaces of the buffers, The handle 1 (Figor play. until the lockingl members are in ure l) is, as usual, lprovided'with recesses 45 liull mutual engagement, since otherwise said or notches (zo-operating; with pins 9 or other motion will be transferred to the handle, catchers disposed on member 2. llt the and as the peripheral speed ot the latter is engine ,starts in the proper direction, the considerably greater at the grip than handle disconnected. axially as usual. lit' the en gine, on the contrary, runs backwards, the member 2 is locked, and as the handle is in engagement with said member, no movement ot the handle, neither backwards nor axially, takes place, the clutch 5, 6 being` disconnected and allowing` backwards running of the engine shaft 8 independent of the handle. o

rlhe mit 10 is secured to the member '2, for the purpose ot keeningi together the stationaryv member bers insertedbetvveen the inember'sQ and 3.

The nut may, however, also be so arranged as to serve as catcher insteadr of the rpins 9 when starting.

In the embodiment A o adapted tor 4automobiles or the like vthe principal v.parts of the device are similar to those showninlligure l but arey otherwise arianged.-H l' is the handle, 2 the member entrained by the same, 3 the stationary. member between which andthe member 2 the lock 4l operating; in one direction only is disposed," rlhe handle l1 is by means ot lugs 91 in engagement with member 2. Located in thehub` of the handley serving in this case as one part 4of the resilient clutch are the buffer springs 6 actuating tlie buffers', the conical portions of vWhichengage the socket Z secured to the starting shaft 8.' lThis shaft forms an extension of the engine shaft and is by means ot the clutch socket 11 connected with the ,corresponding socket of the latter Shaft. 1 y l y -When ,starting the vengine the shaft 8 and the handle l are disconnected as usual. On backward running; the shaft 8 and the socket 7 are rotated, and the shaft will be disconnectedfrom the buers located in the hub of the handle. The handle engaging the member 2 .remainsl at a standstill.

Figure l illustrates a modication ot' the device shown .in Figure 3. The handle l is 'secured tothe shaft 8 and isy by means ot lugs 91 onthe hub ofthe handle connected with member The shaft 8 is provided With a sepa-rate socket 7 secured to the shaft by the pin l2 and connected by thediscon-` nectible clutch 5, 6 with the clutch socket l1. rllhe Vlatter is not movable axially but rotates on`v` the sha-ft, `While overcoming the resist.- ance of the clutch 5, 6, should the engine runbackivards lWhen the handle remains at a standstill oWingto the' socket 7 being secured to the shaft 8' to which the handle is attached, the latter being rigidly secured by means of the lugs 91 to the locked member 2. iln allthe embodiments described above there maybe used several clutches resilient on account jof .an overload as Well as' pins, the` strength of Which are so'adjusted as to all'oiv' breaking 'of the pins on backwards running. v

The entrainedmember-Q may, as shovvn'in- Flgures and 4, consist of the shaft 8;. in'.

and the clutch mem` shown in Figure 3 `membersr bea which case. lum/evernl the stationary member 3 should lie/immovable axially on said shatt. ,lf the member 2 is connected with thesha'l" 8 by means of key and leyivay, the Jb may move in themembcr in which c. the member used need not be movable axially. l?) is the sniiport of the shaft S bolted usual to the engine trame.

All the embodiments described above arc based on the arrangement ot member rotatinp; with the handle 'at the starti l locked upon backivarrl 'iininine'to a .i i onary member by`m-eai'is1ot an immediately acting lo lkinnv device"andthus serving i'irm resistance against the power requisite for the disconnection olf the resilient clutch from vthe enginesha'tt or any member con nec-ted with the same.

1What .l claim as neiv and desire to secure by `Letters Patent of the United States iszil, A starting` apparatus Yfor engines-in'- cllidinp; a part fixed tothe engine shaft, a starting' cr lt, part rotating` with the startin@` crank, snrin' actuated detente arranged between the two 1parte andengan'- ing'in notches or recesses in one part, yWhile they are displaceable in recesses in the other parasaid recesses being arranged parallel with the engine shaft, coil springs` enclosed in recesses and actuating` the detente, a second ixed part surrounding the part rentrained by the crank, and rolling?,v lock-meme bers arranged between the last-mentioned part and the second xedfpart. y

9,. n. starting apparatus-tor enginescon-- sistine; oit a part attached to the engine shaft, a starting crank, a bart entrained by or rotating; iviththe starting; crank, spring actuated detente situated between these 'two ir ts, a fixed part surrounding the part en# trained by the crank, rolling;` `look-members arranged between the last-mentioned part and the "'jed part, an outer track tor the said roll; lock-members which is circular and concent ic with the center oi' rotation of the cranlr and 4an' inner trai-lr 'l'or the said lock-meinbers7 said last-mentioned track formino; polygon, and one ot therollinlg);

against either side ofthe polygon. y I

A. starting' device tor internal combus-y tion engines, including' afshatt, a starting crank, a'member 'rigidlyconnected with the shaft, another member adapted to rotate rel-- atively to said shaft and movable with .the starting` crank, detente arranged between said members and so devised that the same are normally in engagement with both mehr bers, resilient vnieans for `forcing;w the detente towards one of said members for normally maintaining' the members in. locked'relation, one oit' said members, on the motorbeing reversed l.being automatically disengageable from the other'nfiember capable of overl coming the action of the resilient means, a

iso

{xcd 11ML, :1v roller dement lock arranged b- `d part amd the member which 10- 1 leavjw to ih@ Shaft and adapted to mn'lediataly lock he last mentioned memhe when geverse movement of che engine akes place, and coil springs arranged in recasses i1 the membe: which iS rigidly conllGC'ted with the shaft for moving the detents in om; direction, mld recesses being ur ranged parallel with Said Shafz.

n testimony Wheeof aHX my Signature in p'sence 01 two Witnesses,

ANDERS JHAN E: SON MUNTERS,

TWtnessefs HEL@ ANDERMANa LINNSON NEOLEN. 

